Date |
ca. 1700 |
Maker |
Khalīl Muḥammad ibn Ḥasan
‘Alī |
Place |
Iṣfahān |
Material |
Brass |
Inventory no. |
50987 |
Acquisition |
Presented by J. A. Billmeir in
1957 |
The rete is of the foliate (single knob) type. The
zodiac on the rete is labelled: حمل , ثور , جوزا , سرطان ,
اسد , سنبل , ميزان , عقرب , قوس , جدي , دلو , حوت
Scales
Range & Units |
Numbered |
Geometry |
Location |
Ecliptic |
0 - 30 Degrees of ecliptic |
Every 6 |
Ecliptic |
ecliptic |
Stars
There are 28 stars on the rete marked with
foliate pointers. Unless otherwise indicated the star name,
mediation and declination are as marked/measured on the
rete.
Click on the star name or modern star name to search for
other astrolabes with the same star.
Star name
(on instrument) |
Modern star
(if known) |
Mediation |
Declination |
Pointer |
ذنب قيطس |
Deneb Kaitos |
3.0° of Aries |
-10° |
foliate |
صدر قيطس |
|
12.0° of Taurus |
-14° |
foliate |
مسافت النهر |
Zaurac |
26.0° of Taurus |
-13° |
foliate |
عين الثور |
Aldebaran |
13.0° of Gemini |
23° |
foliate |
رجل اليسرى |
Rigel |
20.0° of Gemini |
-7° |
foliate |
يد يمنى |
Betelgeuse |
4.0° of Cancer |
16° |
foliate |
شعرى يمانيه |
Sirius |
7.0° of Cancer |
-13° |
foliate |
شامي يمعرى |
Procyon |
18.0° of Cancer |
9° |
foliate |
طرف السفينه |
Rho Pup |
24.0° of Cancer |
-21° |
foliate |
فرد الشجاع |
Alphard |
17.0° of Leo |
-7° |
foliate |
قاعده |
Alkes |
10.0° of Virgo |
-14° |
foliate |
جناح الغراب |
Gienah |
28.0° of Virgo |
-14° |
foliate |
اعزل |
Spica |
18.0° of Libra |
-9° |
foliate |
سماك رامح |
Arcturus |
3.0° of Scorpio |
23° |
foliate |
عنق الحيه |
Unukalhai |
12.0° of Scorpio |
10° |
foliate |
فكه |
Alphecca |
25.0° of Scorpio |
27° |
foliate |
قلب العقرب |
Antares |
4.0° of Sagittarius |
-26° |
foliate |
ركبه الحوا |
|
10.0° of Sagittarius |
5° |
foliate |
راس الحوا |
Rasalhague |
17.0° of Sagittarius |
18° |
foliate |
نسر واقع |
Vega |
9.0° of Capricorn |
37° |
foliate |
ذنب العقاب |
Deneb el Okab |
14.0° of Capricorn |
30° |
foliate |
طاير |
Altair |
20.0° of Capricorn |
7° |
foliate |
ذنب الدجاجه |
Deneb |
4.0° of Aquarius |
42° |
foliate |
مقار الدجاجه |
|
10.0° of Aquarius |
30° |
foliate |
فم الفرس |
Enif |
18.0° of Aquarius |
7° |
foliate |
ساق |
Skat |
7.0° of Pisces |
-17° |
foliate |
كف الخضيب |
Caph |
23.0° of Pisces |
58° |
foliate |
Horse Image:
Horse Image:
Horse Image:
Pin & Horse
The rete is attached using a pin
& horse.